Learn more about Mr Cool Minisplits/DIY Minisplits

MRCOOL Minisplits

DIY Minisplits

A ductless mini-split system is a type of heating, ventilation, and air conditioning (HVAC) system that provides both heating and cooling to individual rooms or zones in a home without the need for ductwork. It consists of an outdoor unit (condenser) and one or more indoor units (evaporators), which are connected by refrigerant lines.

Mr Cool Minisplits/DIY Minisplits.

Here are some key points to consider when thinking about installing a ductless mini-split system for your home:

Zoned Heating and Cooling: Ductless mini-split systems let you divide your house into various temperature zones. You may independently manage each indoor unit to heat or cool a particular room or area as needed. Since you don't have to condition every room in the house at once, this can result in energy savings.

Energy Efficiency: Mini-split systems are renowned for their high energy efficiency. They feature inverter technology, which reduces energy usage and utility costs by adjusting the compressor speed to meet the heating or cooling load.

Mr Cool Minisplits/DIY Minisplits.

No Ductwork Required: One of the primary advantages of ductless systems is that they don't require the installation of ductwork. This makes them a practical option for homes without existing ducts or for room additions where extending the ductwork would be costly and impractical.

Flexibility in installation: Depending on your preferences and the design of your home, ductless mini-splits can be mounted on walls, ceilings, or floors and are generally simple to install. Flexible placement is made possible by the connection of the interior units to the outside unit through a small hole in the wall.

Heating and Cooling: Ductless systems are perfect for year-round comfort since they may supply both heating and cooling. They employ heat pump technology, which in the winter draws heat from the outside air to heat your home and reverses the process in the summer to cool it.

Remote Control and Smart Features: Many ductless mini-split systems are remote-controlled or have smartphone apps for control. Some even include advanced capabilities like Wi-Fi connectivity that let you plan temperature changes and change settings remotely.

Maintenance: To preserve the system's effectiveness and longevity, routine maintenance is required, such as cleaning or replacing air filters. A competent HVAC expert should undertake yearly inspections as well.

Cost: Depending on the number of indoor units, the system's capacity, and installation factors ductless mini-split systems can range in price. While the upfront cost could be higher than with some other HVAC alternatives, the energy savings and zoning advantages can eventually make up for this.

Before purchasing and installing a ductless mini-split system, it's a good idea to consult with an HVAC professional who can assess your home's specific heating and cooling needs and provide recommendations based on factors such as climate, insulation, and room layout.

Mr Cool Minisplits/DIY Minisplits.

MrCool DIY Minisplits

MrCOOL 4TH Generation DIY – Benefits and Features:

MrCOOL 4th Generation DIY is a ductless mini-split air conditioning and heating system designed for easy installation by homeowners. Here are some key features and benefits associated with MrCOOL 4th Generation DIY

  • Easy DIY® Installation 

Precharged R-410 Quick Connect® Line Set 

This cutting-edge ductless system may be installed without the need for specialized tools, gear, or training thanks to pre-charged linesets. There are couplers available for longer lengths. 


  • Energy Star 

Certified Efficiency

Going above and beyond for efficiency while maintaining optimum performance and reliability, the 12K, 18K and 24K models are Energy Star Certified.


  • Smartphone App

Enhanced Control from Anywhere

Control your MRCOOL DIY® anywhere with your Apple or Android smart device and an internet connection.


  • NEW DIYPRO™ Cable

Safety & Durability 

The included DIYPro™ Cable eliminates the need for electrical conduit providing higher mechanical protection and durability.


  • Follow Me® Function 

Keep the remote closeby, and MRCOOL DIY® will monitor the temperature of the air around you to make sure you are as comfortable as possible.


  • Leakage Detection 

An alarm will ring to let you know that there is a problem when the MRCOOL DIY® detects low coolant. By doing this, you may maintain excellent air comfort without endangering the compressor.


  • Low Ambient Cooling 

Because of this quality, the MRCOOL DIY® is the best cooling solution for server rooms, greenhouses, and other year-round cooling applications.


  • Auto Restart 

In the case of power failure, the unit will auto-restart


  • Sleep Mode 

To help you sleep a little better and save money, we made setting up Sleep Mode simple.


  • Louver Position Memory 

The horizontal louver will automatically return to the position you last specified when you turned the unit on.


  • Gold Fin® Condenser 

Condenser has long-term corrosion resistance built in.


  • Digital Assistant Ready 

The new MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

MrCool Multi Zone Minisplit

MrCOOL 4TH Generation DIY Multi-Zone:

The 4th Generation Multi zone unit gives you flexibility and control whenever and wherever you want it. You can add up to 5 rooms at a time MRCOOL® DIY® 5 Zone Multi-Zone unit. Pre-charged linesets, which come in 16' and 25' lengths, make it possible to install this ground-breaking ductless system without the need for specialized tools, gear, or training. Electrical conduit is not required thanks to the supplied DIYPro Cable, which also offers greater mechanical protection and durability. These units come with features like Follow Me Function, Leakage Detection, Low Ambient Cooling, Auto Restart, Sleep Mode, Louver Position Memory, Gold Fin Condensor, and more..

Mr Cool Minisplits/DIY Minisplits.

MrCool Mini Splits

NOTE: MRCOOL® products must be installed in accordance with all applicable local, state, and federal codes and regulations. Unless explicitly stated otherwise, installation must be completed by a licensed/certified HVAC technician. ALL electrical connections to a power source must be performed by a licensed electrician and comply with local, state, and federal electrical codes and regulations.

The Furnace Outlet has a wide range of MrCOOL DIY Mini Splits units available for your requirements, just give us a call or email us and our product specialist will be able to guide you the best, did we mention that we give you a guarantee for the Lowest Price if you find a similar unit cheaper than us – just let us know and we will beat the price.



The Furnace Outlet

The Furnace Outlet

Thank you for your kind words! I’m glad you found the article helpful. Writing it took a lot of research and effort, so it’s great to hear it made a difference for you. We’re dedicated to providing clear, helpful information so you can make informed decisions. Your feedback encourages us to keep creating articles that are easy to understand and useful. If you have any questions or topics you want us to cover in future articles, just let us know. We’re here to help!



Good article. One major thing to note, although it’s DIY install, it is not DIY service. Mr Cool will not sell you a service or troubleshoot manual, only licensed installers may access those. So if you want to make simple repair, such as find a bad temp sensor etc your out of luck

tyrone loukas

tyrone loukas

your article has provided invaluable insights. It’s evident that a lot of effort went into researching and presenting this information, and I’m truly grateful for the clarity it brings to the decision-making process.

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